public function TestContextAwareBlock::build in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/block/tests/modules/block_test/src/Plugin/Block/TestContextAwareBlock.php \Drupal\block_test\Plugin\Block\TestContextAwareBlock::build()
2. 10 core/modules/block/tests/modules/block_test/src/Plugin/Block/TestContextAwareBlock.php \Drupal\block_test\Plugin\Block\TestContextAwareBlock::build()

Builds and returns the renderable array for this block plugin.

If a block should not be rendered because it has no content, then this method must also ensure to return no content: it must then only return an empty array, or an empty array with #cache set (with cacheability metadata indicating the circumstances for it being empty).

Return value

array A renderable array representing the content of the block.

Overrides BlockPluginInterface::build

See also

\Drupal\block\BlockViewBuilder

File

core/modules/block/tests/modules/block_test/src/Plugin/Block/TestContextAwareBlock.php, line 27

Class

TestContextAwareBlock

Provides a context-aware block.

Namespace

Drupal\block_test\Plugin\Block

Code

public function build() {

  /** @var $user \Drupal\user\UserInterface */
  $user = $this
    ->getContextValue('user');
  return [
    '#prefix' => '<div id="' . $this
      ->getPluginId() . '--username">',
    '#suffix' => '</div>',
    '#markup' => $user ? $user
      ->getAccountName() : 'No context mapping selected.',
  ];
}